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Cited by 262

The DOI matches its Crossref record; 17 of the 17 references it cites were found in a registry or an index.

Molecular Weight Dependence of Fragility in Polystyrene

Santangelo, P. G., Roland, C. M.·1998·Macromolecules
DOI 10.1021/ma971823k
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Abstract

Segmental relaxation was measured for a series of polysytrenes (PS) of varying molecular weight. The normalized Arrhenius plots of segmental relaxation times (fragility curves) become less steep for shorter chain lengths. Since the shape of the relaxation function is invariant to molecular weight, such behavior is a deviation from the usual correlation between time and temperature dependencies. Although the dependence of relaxation times on T g -normalized temperature is weaker (less fragile), lower molecular weight PS has a larger heat capacity change at T g . This result is at odds with an interpretation of temperature dependencies in terms of the degrees of freedom available to the glass upon transition to the viscous liquid.

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Metadata

Authors
Santangelo, P. G., & Roland, C. M.
Venue
Macromolecules
Publisher
American Chemical Society (ACS)
Published
1998-06-25
Volume
31
Issue
14
Pages
4581-4585
ISSN
  • 0024-9297 (ISSN-L)
  • 1520-5835
DOI
10.1021/ma971823k
OpenAlex
W2058356548
Cited by
262
References
17
FWCI
5.75
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Molecular Weight Dependence of Fragility in Polystyrene. https://app.cochat.ai/papers/10.1021/ma971823k
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Santangelo, P. G., & Roland, C. M. (1998). Molecular Weight Dependence of Fragility in Polystyrene. Macromolecules. https://doi.org/10.1021/ma971823k

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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.